If the first term is the subject of the sentence, then the second term is the predicate.
From the query, it is quite clear that you need to study about the grammar of English language in general. If you want to improve your English grammar, the best way is to practice reading books, watching movies or TV shows, and writing simple sentences. You can also take online courses or practice exercises to improve your grammar skills. Additionally, you can use online resources like Grammarly or LanguageTool to check your writing for errors.